Registro de la MSHA sobre Mason No 7 (ID de mina 1515169). Muertes, incidentes no mortales agrupados por año, operador y controlador actuales, y contexto de la mina.
Avísenme cuando se presente un nuevo incidente de la MSHA en Mason No 7.
UNINTENTIONAL ROOF FALL OCCURED AT THE 7TH CROSSCUT OUTBY THE 002 SECTION. THE FALL FELL ABOVE THE ANCHOR. AREA OF THE FALLW AS 20'X70'X5' THICK. FROM THE #3 BELT ENTRY AND THROUGH THE CROS S CUT AND ACROSS THE #4 RETURN AIR COURSE.
EE WAS RUNNING A WILCOX J-6 ROOF BOLTING MACHINE W/ATRS BOLTING IN SEQUENCE FROM LEFT TO RIGHT; BOLTS ARE NUMBERED 1-4, WHEN PREPARING TO INSTALL BOLT #4 IN SEQUENCE, A PIECE OF DRAW ROCK FELL BETWEEN BOLT #3 AND THE RIB WHERE BOLT #4 WOULD BE INSTALLED, THE ENTRY WIDTH IS 20'.
INJURED WAS WORKING AT THE FACE OF TH EMINE AS MIENR HELPER AND WAS IN THE PROCESS OF HANGING A VENTILATION CURTAIN. E HADN'T NOTICED A LOOSE PIECE OF ROCK BETWEEN THE RIB AND THE FIRST ROW O F ROOF BOLTS, WHIHC FELL ONTO HIS BACK AS HE WAS WIRING THE CURTAIN TO A ROOF PLATE.
STRAINED HIMSELF BUY LIFTING AN UNKNOWN OBJECT. THIS REPORT REPLACEDS THE PREVIOUS ONE FOR THE SAME EE INCORRECT MSHA ID WAS REPORTED.